City report · United States
Indianapolis
Measured across a 2 km radius around Mile Square, Indianapolis, IN, USA (12.57 km²)
- Tree cover
- 18.5%
- Air quality
- 30Good
- Trees in this area
- 57.1K
- More trees needed
- 35.5K
- Area analysed
- 12.36 km²land, in a 12.57 km² circle
- Satellite image
- Sep 13, 2026
Indianapolis's tree count comes to 57,131 trees across 12.36 km² of land — 12 points below the 30% tree-cover level considered healthy for this area, meaning roughly 35,514 more trees would close the gap. Air quality currently reads AQI 30 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Below target
18.5% tree cover against a 30% healthy-neighbourhood target, across 12.36 km² of land.
Trees in this area
57,131
Target trees
92,645
More trees needed
35,514
CO₂ if planted / yr
781.3 t
Air quality detail
AQI 30Good
Observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
2.4
PM10
2.6
NO₂
5.5
O₃
64.0
SO₂
1.3
CO
179.0
Frequently asked
Questions about Indianapolis
What is the tree count in Indianapolis?
Indianapolis has an estimated 57,131 trees across the 12.36 km² of land measured — 18.5% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Indianapolis need?
Indianapolis needs roughly 35,514 more trees to close a 12-point shortfall against its 30% tree-cover target — about 781.3 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Indianapolis right now?
The latest reading for Indianapolis shows an AQI of 30 (Good), observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Indianapolis's tree cover and air quality measured?
Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Mile Square; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS and may differ from street-level monitors.
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